The same topic...
a) What force must the woman in the figure above exert on the floor with each hand to do a push-up? Assume that she moves up at a constant speed.
Fhand =
147N
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b) The triceps...
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What force must be exerted by the wind to support a 2.5 kg chicken in the position where one leg is touching the ground 9 cm from the center of mass, the other is up in the air Irrelevant to this problem.
I know...
Maybe if I throw some more thinking out there..I went this route...
since the max height is 66. the amplitude is 33. the wavelength is 198 =
lamda.
thus the equation for the wave is
y = amplitude sin (x/lamda * 2 pi)
y = 33 sin (x / 198 * 6.28 + 3 pi / 2 ) the 3 pi/2 is the minium point...
The height of the tracks of a roller coaster varies sinusoidally with the horizontal distance from its starting point. The roller coaster tracks start from the lowest point of the sinusoidal curve and reach a maximum height of 66 meters. The tracks return to the surface of the park for the first...
OK here is where I am at
For the first question All I can think of is the formula Fg = Fq then mg=qE then E = mg/q and q = 1e is that correct??
For the second one I have just KE = 1/2mv^2 E = 500N/C E = Fe/q = Kq/r^2
and for the third one I have Nothing, I don't even know where to...
Answers or Steps, or even formulas are welcome, Any answer to any of them!
Okay First qusetion...
A proton is placed in an electrical field that counters the effect of gravity at sea level. Find The Electric Field.Second Question...
A Proton is accelerated from rest in an electric field of...